1. Klinikum Darmstadt GmbH, Medizinische Klinik I, Grafenstrasse 9, Darmstadt, Germany
2. Hospital Clinic, Sección de Hemodinámica Cardíaca; Villaroel 170, Barcelona, Spain
3. Royal Sussex County Hospital, Sussex Cardiac Centre, Eastern Road, Brighton, UK
4. Hopital de Rangueil CHU Toulouse, Department of Cardiology, 1 avenue Jean Poulhès, Toulouse Cedex 9, France
5. AHEPA University Hospital, 1st Department of Cardiology, Stilponos Kyriakidi 1, Thessaloniki, Greece
6. Cardiology Clinic, MHAT “Tokuda Hospital Sofia”, 51B Nikola Vaptsarov Blvd., Sofia, Bulgaria
7. Hospital Galdakao-Usansolo, Sección de Hemodinámica, barrio de labeaga s/n, Galdakao, Spain
8. Pauls Stradins Clinical University Hospital, Institute of Cardiology and Regenerative Medicine, 13 Pilsonu street, Riga, Latvia
9. Aarhus University Hospital, Department of Cardiology B, Skejby Aarhus N, Denmark
10. Hospital Clinico San Carlos, Unidad de Cardiología Intervencionista, Profesor Martin Lagos s/n, Madrid, Spain
11. University Hospital Careggi, Division of Structural Interventional Cardiology, Largo Brambilla 3, Florence, Italy
12. Institut Jacques Cartier, 6 avenue Noyer Lambert, Massy, France
13. Bellvitge University Hospital, Unidad de Hemodinàmica y Cardiologia, C/ Feixa Llarga s/n, L'Hospitalet de Llobregat, Barcelona, Spain
14. HELIOS Klinik Krefeld, Medizinische Klinik I, Lutherplatz 40, Krefeld, Germany
15. Zentralklinik Bad Berka, Klinik für Kardiologie, Robert-Koch-Allee 9, Bad Berka, Germany
16. Leuven Biostatistics and Statistical Bioinformatics Centre, L-BioStat. Kapucijnenvoer 35, Leuven, Belgium
17. Hospital Universitario Puerta de Hierro, Servicio de hemodinamica y arritmias, Joaquin Rodrigo, 2, Majadahonda, Spain
18. Royal Infirmary of Edinburgh, Department of Cardiology, 51 Little France Crescent, Edinburgh, UK
19. Glenfield Hospital, Leicester Cardiovascular Biomedical Research Unit, Groby Road, Leicester, UK
20. Department of Clinical and Experimental Medicine, University of Catania, Via Antonello da Messina 75, Catania, Italy